T&T can be very last minute. We knew the meets we were going to by November for a January season start. We often didn't get the actual flight times until a bit earlier in the week of the meet. They change a lot, so even if you get a schedule 3 weeks out, assume it might change.
In case you haven't been warned, T&T is not like all around gymnastics, in that the different events are not sequential. We often had double mini on one day and trampoline on another, tumbling early in the day and another event late, for example. So we would literally have to spend the whole weekend at local meets.
They also do awards immediately after each flight, instead of at the end of the meet rotation, and you very well might not be able to see them at all.